Semester Test 2024**
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
Student preview
15 questions
Show all answers
1.
FLASHCARD QUESTION
Front
What is Newton's 1st Law of Motion?
Back
An object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside force.
2.
FLASHCARD QUESTION
Front
What is an unbalanced force?
Back
A force that causes an object to accelerate, change direction, or change shape.
3.
FLASHCARD QUESTION
Front
How do you calculate power?
Back
Power = Work done / Time taken.
4.
FLASHCARD QUESTION
Front
If you do 90 joules of work in 30 seconds, what is your power output?
Back
30 watts.
5.
FLASHCARD QUESTION
Front
What is the formula for calculating work?
Back
Work = Force x Distance.
6.
FLASHCARD QUESTION
Front
If you move an 8-newton weight five meters in 4 seconds, how much power do you generate?
Back
10 watts.
7.
FLASHCARD QUESTION
Front
What is a control variable in an experiment?
Back
A variable that is controlled and stays the same between experiments.
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